Yes, I think the K80 will handle light wind wave sailing fine. But if you already have (or intend to get) the K86, I think the K74 will be a better partner. From powered up 5.3 and down the K74 work and it will be far easier to control on a wave with smaller sails (say 4.5 and below). And since the K86 is still really fun in wave when its light I thinkt eh K74 is the better choice.